Alienware Aurora MOBO Swapping

I would like to finally change my 04VWF2 Mobo on this old aurora. I got this desktop free years ago from a friend who didn't need it anymore after he built his new pc. I want to upgrade to a new Ryzen CPU when the new ones come out. I just can't find anything about replacing the MOBO on these things. I hear a lot of things don't actually even fit in this case so am I better off just ditching this old case finally or is there a MOBO I can switch to?